An anonymous reader writes: Sony made a surprise announcement late on Wednesday, saying that it will introduce an new PS3 controller with rumble feature in spring of next year. Called Dualshock 3, the new controller will re-introduce the vibration functionality to the Playstation controller — a feature that had disappeared with the introduction of the Playstation 3 and the motion sensitive "Sixaxis" controller. It looks like that the new controller was made possible largely because Sony and Immersion resolved their patent dispute earlier this year. Back then, the two companies said that they had "entered into a new business agreement to explore the inclusion of Immersion technology in Playstation format products." Judging from today's announcement, the agreement apparently is bearing fruit.